Improved hatchway-door



UNITED STATES PATENT OFFICE.

MARSHALL S. DRIGGS, OF BROOKLYN, YORK.

IMPRovr-:D HATCHwAY-DooR.

Specification forming part of Letters Patent No. 54,874, dated May 22,1866.

To all whom it may concern:

Be it known that I, MARsrmLL S. Dnrees, of Brooklyn, in the county ot'Kings and State of New York, have invented certain new and usefulImprovements in Hatchway-Doors, of which the following is a full, clear,and exact description, reference being had to the annexed drawings,which are made part of this specification, in which- Figure l is avertical longitudinal section, showingthe floor ot' the building andthehatchway-door; and Fig. 2 is a transverse section on the line as a2,Fig. 1.

The same letters in the different figures refer to identical parts.

A represents the Hoor of the building or vessel in which the hatchway isopened. Beneath this door, in the ceiling of the room below, the hangersB support the horizontal Ways G C. These ways have a flange upon theirouter side to confine the trucks D, and are of a length sufcient toenable the hatch E to run under the oor and open the hatchway.

The Ways are placed under the frame surrounding the hatchway, and so asnot to interfere with the use thereof.

The hatch E is framed in any suitable Inanner. It should be a littlelarger than the hatchway, and is placed upon trucks D D, which run uponthe Ways B B. The hatch runs freely but snugly under the joist, beingactuated in opening and closing the hatchway by ropes, with or withoutpulleys, as may be most convenient. f

What I clain as my invention, and seek to secure by Letters Patent, is-

Constructing a hatch, E, with trucks D, running upon horizontal ways B,suspended beneath the door, so that the hatchway may be opened andclosed from below, substantially in the lnanner set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscrihin g Witnesses.

M. S. DRIGGS.

Witnesses:

JOHN M. STEARNS, W. K. VAN VALKENBERG, `EDMUND Dniecs.

